Lab 42.2

Battogtokh

Hi, I am having trouble with updating /boot/grub/grub.cfg file on Ubuntu 16.04. I tried rescue mode, but it is still doesn't accept my edit because it is "Read only" file. I tried /etc/default/grub, but there is nothing to change for UUID. Please advise where I am lost. I googled for hours to get through it. But still scratching my head ...

Battogtokh

Oh i see that file can be updated with :wq! in vim, even it is readonly. Please advise what else I could try updating read only files?

luisviveropena

Hi Battogtokh,

You can use the following command to remount a partition as read write:

mount -o remount, rw /

In case that you want to remount the root partition as read-write.

Regards,

Luis.